Thanks Steve!!
your comments are so precious as always
you let me focusing on the colour of grass that wasn't so natural as I remember it was in that day
I think I failed on WB
here below a new version with different WB
I 've taken in example the latter image for WB, but isn't so easy 'cause, as you can see in this image, the grass was turning to yellow as the altitude was incresing, and in the first one the sun was obscured by cloudsa
perhaps the best point to find WB is the skin tone.. but I 'm not so able to do this...